Bobbin.



' w. M. 'HASTiNEGS-f BOBBIN.

- APPLICATION FILED FEB. 24,1908. 912,564,

Patented Feb. 16, 1909.

F/GZ.

f d WM m% /TA/Ess E S 1 No.e12,5e4.

i OFFICE. M

WALrEs. n enna -e1 METHUEN, Hammer-rs, rammed naArER c mm;

' 1;; 9F HOPEDA-LE, mssaouusurr's; A CORPORATION. F MAINE;

To all whom it may concern."

Be it known that I, WALTER M. HASTiNGS, a citizen of the United Statesof America, and a resident of Methuen, in the county of Essex and Stateof Massachusetts, have invented an Improvement in Bobbins, of which thefollowing is a specification.

The mvention relates .to bobbins of wood or other absorbent material.Such bobbins are liable to expand and contract with atmospheric changesand because of this, to split and become useless, and this efi'ect isproduced in an extreme degree when the yarn is steamed after it is woundupon the bobbins thus subjecting them to frequent wetting and drying, asis almost universally the case with Worsted yarn. To prevent suchsplit-- ting, heretofore. one or more elastic rings have been sprung uon the lower end of the bobbin, as set fort in the patent of L. 0.Baldwin, No. 366,196, July 12, 1887; but the use of such elastic ringsis 0 en to serious objection, for their contract' 6 force upon the woodis, when first applied, from to 40 pounds each, and although theyprevent the splitting of the bobbin when frequently wet and dried, thecontractile'force of the rings compresses the material of the bobbins asit dries, and thus reduces the diameter'of the bore, so that very soonit becomes so small that itwill not fit down in proper position on thespindle or cap-tube used when spinning worsted yarn, an it is necessaryto ream out the bore from time to time. Further,gaf ter repeatedshrinking and reaming the bobbins become so small exteriorlythat theelastic.

rings are loose upon them, which is very obectionable when the bobbin isput into the shuttle for weaving.

My improvement obviates these last named objectionable features, andconsists of the combination with a bobbin of one or more exteriorelastic ringsand one or more interior integral tubes or rings ofnon-hygroscopic material, such as metal, with a bore of substantiallythe size of that of the'bobbin, in serted therein in a positionsubstantially coincident. with that o the elastic rlngs upon I theexterior thereof. Such tubes or rings are made of suflici'ent strengthto. reinforce the bobbin and enable it to resist the contractmg' forceof the elastic rings. Thus the bore of the bobbinremains constant,- thetrouble and expense of .reboring orreaming is obviated, and the periodof usefulness of each bobbm 1s Specification of Iietters Patent.Application flled'l 'ebruary: 24,1908. atrium; 411,32.

I indefinitelyextended. It is suggested in the Baldwmpatent referred to,that the elastic suggested of withstanding any strain from without ifthe bobbin is ste ped' upon; but such an application of the elastic ringwould aggravate the tendency of the bobbin to split when wetted anddried. The combination of external contracting rings and an internaltube or ring is one of great practical value, for by the cooperation ofthe parts in firmly holding the. lower-end of the bobbin, the life ofthe bobbin is greatly prolonged. A suitable material from which to makethese reinforcing rings or tubes, is brass, as it is suilicientlystrong, is easily made and is less liable to corrode than iron, and thecorn ressing force of in place without other retaining means; andbesides, these interior tubes prevent the bobbin from being compressedto such an exfent as to cause the elastic rings to become oose.

In the drawings forming a part of this specification, Figure] is alongitudinal section of the bobbin with the exterior elastic rings andan interior reinforcing tube; Fig. 2 is tom end Fig. 3 is a perspectiveview of the bobbin,showing a portion of the interior reinforcing tube.

The several; parts of the bobbin with the improvement are indicated asfollowsz-B, .the uill of weed or other-light absorbent materisll; r, r,the elastic rings, preferably of steel, 'sprun upon -the enlargedexterior of the base of t e q'uill; T, the interior reinforcstantiallycoincident with that of the exterior resilient 'rings, inorder to resisttheir compressing contractile force and revent the contraction-of thebore of the obbin, and the shrinking of the material thereof. 'Inbobbins intended for use with tapering spindles the interior tube may beof a size to fit the spindle and serve as a bearing thereon.

The interior tubeT is a cylindrical vmetal bushing or sleeve which isdriven into place r, r, as shown in Fig. 1, so as to s uarelyresisttheir compressing contractlle force. The. tubeis' held in place i'rictionally by neason of its close;fit and the-contractilelfome of theexternal rings 13,: No portion of the in- Patehted'l'eb. is, 1909. I v

the exterior elastic rings wi hold the tubes plan view of the bobbin,looking at the bot ing tube,the position of which should be suband whichregisters with the external rings a ring may be inserted within the boreof the a bobbin. This might accomplish the result 2 .within the lowerend of tion- OI'SitlCl interior danger of receiving the bobbin. indeed,in the specific bobbin .material having one material having oneor tubean opposed interior inteternal true '1 oxtends far enough beyond the/within base of tlie bobbin or quill B so as to be in any displaoing'blowdur ing the use of the bobbin. It is'i'or all substantial purposeswholly within the bore of metallic reinforcing the lower end of thebobbin, sair opposite to al of the external rings.

3. A bobbin of wood or other absorbent material liming one or more openresilient rings upon the exterior of its lower end, a transverse slot inthe bin, and an internal reinforcing tube wholly within the bobbin and.the slot thereof and opposite all of the external rings.

4. A bobbin of Wood or other absorbent illustrated, which has atransverse driving slot 8 to retain the bobbin in position duringspinning, the internal ring is wholly within this slot so as, not toconflict therewith.

1. A bobbin of wood or other absorbent or 1nore open resilient ringsupon the, exterior of its lower end and I exterior 'ofits lower end andan opposed intean opposed interior metallic reinforcing tube riormetallic reinforcing tube he d frictionthe bobbin, no porally'in placewithin the ower end of thebobtube extending substanbin, said interiortube lower end being wholly within tially beyond the extreme bobbin. u

1 2-. A bobbin of wood or other absorbent more open resilient v rings;upon the exterior of its lower end and TER M. HASTINGS.

Witnesses:

FLORENCE A.. COLLINS, ,Josnrnmn H.. RYAN.

rior tube bein wholly within the bobbin and lower end of the bob-+material having one or more rings upon the of the l the bobbin andXpposite the external rings. I

